const MapConfig = require('windshaft').model.MapConfig;

module.exports = class AggregationMapConfig extends MapConfig {
    constructor (config, datasource) {
        super(config, datasource);
    }

    isAggregationMapConfig () {
        return this.isVectorOnlyMapConfig() || this.hasAnyLayerAggregation();
    }

    isAggregationLayer (index) {
        return this.isVectorOnlyMapConfig() || this.hasLayerAggregation(index);
    }

    hasAnyLayerAggregation () {
        const layers = this.getLayers();

        for (let index = 0; index < layers.length; index++) {
            if (this.hasLayerAggregation(index)) {
                return true;
            }
        }

        return false;
    }

    hasLayerAggregation (index) {
        const layer = this.getLayer(index);
        const { aggregation } = layer.options;

        return aggregation !== undefined && (typeof aggregation === 'object' || typeof aggregation === 'boolean');
    }
};